Paradocrasite Mineral Data + 
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- 1.3.3.1 Paradocrasite Sb2(Sb,As)2 C 2 2
- I/B.01-10 Arsenic As R 3m 3 2/m
- I/B.01-20 Stibarsen SbAs R 3m 3 2/m
- I/B.01-30 Antimony Sb R 3m 3 2/m
- I/B.01-40 Bismuth Bi R 3m 3 2/m
- I/B.01-50 Arsenolamprite As Bmab 2/m 2/m 2/m
- I/B.01-55 Pararsenolamprite! As Pmn2 or P 21nm Ortho
- I/B.01-60 Paradocrasite Sb2(Sb,As)2 C 2 2
General Paradocrasite Information |
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 Chemical Formula: |
Sb2(Sb,As)2 | ||
| Composition: |
Molecular Weight = 463.59 gm | ||
| Antimony 91.92 % Sb | |||
| Arsenic 8.08 % As | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Sb3.5As0.5 | ||
| Environment: |
Associated with stibarsen. | ||
| IMA Status: |
Approved IMA 1969 | ||
| Locality: |
Consuls mine at Broken Hill, New South Wales, Australia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named from the Greek for "unexpected alloy" | ||
Paradocrasite Image | |||
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Images:
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Paradocrasite Crystallography |
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| Axial Ratios: |
a:b:c =1.7382:1:1.062 | ||
| Cell Dimensions: |
a = 7.252, b = 4.172, c = 4.431, Z = 1; beta = 123.13° V = 112.27 Den(Calc)= 6.86 | ||
| Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: C 2 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.05(1), 2.093(0.8), 2.219(0.8), | ||
Physical Properties of Paradocrasite |
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| Cleavage: |
[???] Perfect | ||
| Color: |
Silver white. | ||
| Density: |
6.52 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. | ||
| Habit: |
Twinning Common - Crystals are usually twinned. | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Metallic | ||
| Streak: |
metallic | ||
Optical Properties of Paradocrasite |
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| RL Anisotrophism: |
Strong, in vivid pinks, pale orange, yellow, pale greenish blue and pale green.. | ||
| RL Color: |
Bright white. | ||
| RL Pleochroism: |
Distinct, from yellowish white to slightly gray white in air, pale pink-white-gray in oil. | ||
Calculated Properties of Paradocrasite |
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| Electron Density: |
relectron=5.77 gm/cc |
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| Fermion Index |
Fermion Index = 0 Boson Index = 1 |
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| Photoelectric: |
PEParadocrasite = 327.41 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Paradocrasite is Not Radioactive |
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Paradocrasite Classification |
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| Dana Class: |
1.3.3.1 (1)Native Elements | ||
| (1.3)with semi-metallic and non-metallic elements | |||
| (1.3.3)Dana Group | |||
| Strunz Class: |
I/B.01-60 I - Elements | ||
| I/B - Semimetals and nonmetals | |||
| I/B.01 - Arsenic-Bismuth series | |||
Other Paradocrasite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Paradocrasite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Paradocrasite using: Visit our Advertisers for Paradocrasite : Translate Paradocrasite Mineral Data : Ask about Paradocrasite here : Print or Cut-and-Paste your Paradocrasite Specimen Label here :
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